20864457

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 13101111

約数列:

[1, 3, 9, 17, 31, 51, 53, 83, 93, 153, 159, 249, 279, 477, 527, 747, 901, 1411, 1581, 1643, 2573, 2703, 4233, 4399, 4743, 4929, 7719, 8109, 12699, 13197, 14787, 23157, 27931, 39591, 43741, 74783, 83793, 131223, 136369, 224349, 251379, 393669, 409107, 673047, 1227321, 2318273, 6954819, 20864457]

約数ペア:

[(1, 20864457), (3, 6954819), (9, 2318273), (17, 1227321), (31, 673047), (51, 409107), (53, 393669), (83, 251379), (93, 224349), (153, 136369), (159, 131223), (249, 83793), (279, 74783), (477, 43741), (527, 39591), (747, 27931), (901, 23157), (1411, 14787), (1581, 13197), (1643, 12699), (2573, 8109), (2703, 7719), (4233, 4929), (4399, 4743)]